Development of Ppm-Focused Low-Noise Traveling-Wave Tubes for Ku-, K-, and KA-Band

摘要

Work during the reporting period included the following tasks. The initial gun design was completed. Jigs, fixtures, and special straightening techniques were made for cathodegun alignment. The RF performance of the tubes was studied, and a gold-plated helix design was chosen. The helix characteristic impedance variation for RF matching was studied, and the resultant impedance transformer design produced VSWR